Work-support.



C. S. WELLS.

WORK SUPPORT.

APBLIGATION IILED 00T. 16, 1908.

Patented-Feb. 27, 1912. i

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C. S. WELLS. WORKV SUPPORT.

APPLICATION FILED 0CT.16, 1908.

Patented Feb.27,1912`.

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CHARLES STONEHALL WELLS, OF LEICESTER, ENGLAND, ASSIGNOR TO UNITED SHOEMACHINERY COMPANY, 0F PATERSON, NEW JERSEY, A CORPORATION 0F NEW JERSEY.

WORK-SUPPORT.

To all whom t may concern Be it known that I, CHARLES S. WELLS, asubject of the King of England, residing at Leicester, in the county ofLeicester, England, have invented certain Improvements in fork-Supports,of which the following description, in connection with the accompanyingdrawings, is a specification, like reference characters on the drawingsindicating like parts in the several figures.

This invention relates to jacks or work supports such as are used inmachines employed in the manufacture of boots and shoes, and theinvention relates more particularly to that type of jack that can beadjusted upon its support to bring different parts of a boot or shoesupported upon itinto range of the tool or tools of the machine of whichthe jack forms a part.

A jack of the abo-ve mentioned type has heretofore been employed, whichis capable of being moved endwise upon its support and also canted aboutan axis extending longitudinally of the jack. But, in t-he use of thisjack in certain kinds of work as, for example, in pounding up shoes,such canting movement is required only when certain portions of the shoeare being operated upon by the tool or tools, and, accordingly, it hasbeen necessary for they operator, when other portions of the shoe arebeing treated, to hold the jack firmly to prevent it from being cantedunder the action of the tool orV tools. Under other conditions, alimited amount of canting is required and it has beennecessary for theoperator to hold the jack canted to such extent and prevent it fromcanting more by the action of the tools.

It is an object of the presentinvention to relieve the operator of thenecessity of thus holding the jack, and to this, end a feature of thepresent inventionis the provision in a shoe machine jack that can becanted and also mo-ved otherwise (for example endwise) uponvits supportof a device rthat by the endwise or other change of the position of thejack is brought into action to vary the extent of the canting movementof the ack or to lock it against the said canting movement. y p

A convenient form of shoe machine jack constructed according to thisinvention comprises` the provision of a locking device which as the jackis moved endwise, locks Specification of Letters Patent.

Application filed October 16, 1908.

Patented Feb. 27, 1912.

Serial No. 458,100.

the jack from canting duringpart or parts of such movement and at otherpart or parts unlocks the jack to permit it to cant. This form of theinvention is of particular use in a machine (such as a pounding-upmachine) wherein the jack is canted only when the side or shank of theshoe is being treated, and not when the heel or toe portions are beingacted upon, or is canted to a limited extent only when the end portionsof the shoe are being pounded. Preferably the locking device forpreventing the canting of the jack is combined with means to adjust thepoint or points at which the device is brought into action. To accommo-`date shoes of different sizes the heel rest and toe rest of the jack arerelatively adjustable toward and from each other, and a further featureof the invention comprises the provision of connections between thelocking device and one or both of said rests of the ack whereby theamount of endwise movement of the jack before the locking device isbrought into action is proportional to the distance between the rests,that is `to say, is proportional to the size of the shoe on the jack.The locking device may comprise a pin or slot on the jack adapted toengage, respectively, a slot or pin on the jack support.

With the aid of the accompanying sheet of drawings a preferredconstruction of a jack embodying the present invention will now bedescribed-but it must be understood that the construction andarrangement o-f parts set forth is merely by Way of example and thatthey could be varied without exceeding the scope of the invention.

In the drawings z-Figure 1 is a side view of the jack; Fig. 2 is abottom plan of a portion thereof, showing diagrammatically in full anddotted lines two relative positions of the parts adjusted to receive ashort shoe which is shown thereon; Fig. 3 is a vertical longitudinalsection; Fig. 4 is an inverted plan View; Figs. 5, 6, and 7 arerespectively sectionsvon the lines 5 5, 6--6, 7 7 of Fig. 4.

The base of the jack is formed of a tubular portion 2 Within whichisreceived a core or piston 4 pivoted at 5 upon a rotatable jack post 6, arecess being formed in the core or piston to receive the end of thejackpost 6. The head of the jack post 6 enters the .tubular portion througha slot 8 which eX- tends longitudinally from a point near one end of theportion 2 to a point near the other end thereof. If desired however thelongitudinal slot may be open at one end of the tubular part so as tofacilitate the introduction of the core or piston 4, the open end beingclosed by a plug 9 as in Fig. 3, after the piston 4 has been inserted.The plug may also be provided with a projecting part which engages inthe slot and the said plug may be secured in the tubular portion byscrews which pass through the said portion and engage with the plug.Carriages 10 and 12 for a heel rest 11 and a toe rest 13 respectively,are mounted to slide upon the tubular portion 2 but are restrained fromangular displacement thereon. A rack 14 is formed on the tubular portion2 and is engaged by a pinion on each of the carriages. Of these pinions,the one attached to the heel `rest carriage is shown at 15 while at 16is indicated a nut or wheel by which the pinion upon the toe restcarriage is turned, a similar nut or wheel being provided for the pinionon the heel rest carriage. The pinions and the rack afford means foradjusting the distance between the carriages 10 and 12 to accommodateboots or shoes of different sizes. The engagement of the pinions withthe rack prevents the carriages l0 and 12 from turning upon the tubularportion 2 but if desired a feather 17 on the tubular part 2 can also bearranged as shown in Figs. 5, 6, and 7 which feather by engaging withways formed in the carriages will hold still more securely the carriagesfrom angular displacement upon the said tubular part. Any other suitablemeans may also be provided when desired to lock the carriages in theiradjusted positions upon the tubular art. p The constructionhercinbeforedescribed enables the following movements to be imparted tothe j ack z-It can be rotated about the axis of the rotatable jack post6; tilted about the pivot- 5 which is situated within the core or piston4 and by which .the piston is connected with the jack ypost 6; Vmovedendwise, because of the sliding engagement of the piston 4 and thetubular portion 2; and finally it can be canted about the axis of thetubular portion 2 within limits determined by the relative dimensionsofthe slot 8 in the latter and the head of the jack post 6 that, asaforesaid, extends through the slot. These movements are necessary inorder that the portions to be vtreated ofthe boot on the jack can bebrought within range of the tool or tools of the machine and presentedat the desired angle to the path of movement ofthe said toolor tools.

When the jack is used in a pounding-up machine 'the canting movementaforesaid, z'. e. the movement about the vaxis of the tubular portion 2,although ,it is vdesirable and necessary when the tool of the machine ishammering the side or shank of the boot, is unnecessary when the heeland toe portions are being hammered. And to obviate the necessity of theoperator holding the jack to prevent it from canting while suchportionsI are being treated the following mechanism is provided z-Slots20 and 22 are formed in the lower portions of the carriages 10 and 12respectively. The core or piston 4 is provided with two downwardlyprojecting stops 21, 23 which are so disposed that, when the jack ismoved for a certain distance endwise in either direction, one of thesaid studs will engage with its corresponding slot 20 or 22 and therebylock the jack against movement about the axis of the tubular portion.

As shown in Fig. 1 of the drawings the jack is in the position in whichthe heel of the shoe is in a situation to be operated upon, the slot 20is engaged by the pin 21 and the jack is thereby Vheld from canting. Toeffect the operation of the machine along the hoot the ack is moved in alongitudinal direction whereby the slot 20 will be first slid away fromthe pin 21 leaving the jack free to be canted while the side or shank ofthe shoe is being operated upon. Further longitudinal movement of thejack in the same Ldirection will cause the slot 22 to engage the pin 23as shown in dotted lines in Fig. 2 and the jack will again be locked sothat the toe part can be dealt with. Instead of locking the ack when thetoe and heel are presented, the slots and pins may be relativelyproportioned to limit or vary the extent of the tipping movement whichthe jack can have. Also the stops may be formed to limit as describedand thus to restrain entirely the canting of the jack as the operationprogresses along the side or waist to the end portion of the shoe. Tofacilitate the entrance of the stops 21, 23, into the slots 20, 22, theopen ends of the latter are flaredV or wedge-shaped as indicated at 25in Fig. 2. rlhe stops are shown as comprising collars held in place by abolt and nut. Each collar has three pair of opposed faces whereby indifferent positions it presents different widths relatively to the widthof the slot 20 or 22. The stop can be adjusted about its bolt byloosening the nut and when it is adjusted to present its greatest widthit locks the jack against canting movement. adjusted to present a lesserwidth it permits a slight canting -when the heel or toe is beingpounded.

It will be noted that the locking device comprised by the studs 21,23'., and the slots 20, 22 is controlled as to its times of operationduring the endwise movement of the jack by the distance between the-heel.rest 11 and the toe rest 13 and as such distance bears When waist ofthe boot in the jack it will be apparent that adjustment ot' the reststo take a boot of another size automatically sets the locking device sothat it shall act to unlock and lock the ack against canting movement atthe proper times during the endwise movement of the jack for thetreating of such boot.

Having fully described my invention, what 1 claim as new and desire tosecure by Letters Patent of the United States is 1. An apparatus of theclass described comprising a support and a shoe jack which can be cantedon the support and has also another movement on said support, combinedwith a device which is brought by said other movement into action tovary the eX- tent oi'' the canting movement of the jack.

2. An apparatus of the class described comprising a support and a shoeack which can be canted on the support and has also another movement onsaid support, combined with a device which can be brought by said othermovement into position to cooperate with the support for locking thejack against canting movement.

3. The combination with a jack support and a shoe machine jacl that canbe canted and also moved endwise upon said support of a locking devicethat as the jack is moved endwise locks the jack Jfrom canting duringpart of such movement and at another part unlocks the ack to permit itto cant.

4c. An apparatus of the class described, having in combination, a jacksupport, a jack mounted thereon to cant and also to move endwise, meansto vary the extent of the canting movement at a certain part of theendwise movement and means for changing the point in the endwisemovement of the jack when the last mentioned means becomes operative.

5. An apparatus of the class described, having in combination, a jacksupport, a jack mounted thereon to cant and also to move endwise, saidjack comprising a heel rest and a toe rest, means operatively connectedwith one of said rests to restrain the canting movement of the jack whenit is at one end of its endwise movement, and means whereby that restcan be adjusted for shoes of different lengths.

6,'An apparatus of the class described, having in combination, a jacksupport,'a jack mounted thereon to cant and also to move endwise, andmeans located at each end of the jack to be engaged by the support inthe endwise movement of the jack for guiding the ljack into an uprightposition and holding it against canting movement.

7. An apparatus of the class described, having in combination, a jacksupport, a jack mounted thereon to cant and also to move endwise, andmeans arranged to become operative during the endwise move-A ment of thejack for varying the extent of possible canting movement.

8. An apparatus ot' the class described, having in combination, a jacksupport, a jack mounted thereon to cant and also to move endwise, saidjack comprising a base, a heel rest and a toe rest adjustably secured atthe two ends of the base and each provided with a slot, widest at itsinner end, and studs carried by the jack support and adapted to engagethe walls of said slots to limit the canting of the jack.

9. An apparatus of the class described, having in combination, a jacksupport, a jack mounted thereon to cant sidewise and also to moveendwise, means which partakes of said endwise movement and limits thecanting movement variabl according to the posit-ion of the jack in dierent parts of the endwise movement. j

l0. An apparatus of the class described, having in combination, a jacksupport, a jack mounted thereon to cant and also to move endwise, andguiding means constructed and arranged to limit the canting movement inone portion of the endwise movement and to lock the jack against cantingmovement at another portion of its endwise movement.

l1. An apparatus of the class described, having in combination, a jacksupport, a. jack mounted thereon to cant sidewise and also to moveendwise, and means for limit-- ing the eanting movement variablyaccording to the position of the jack in ditlierent parts of the endwisemovement, said jack comprising a heel rest and a toe rest and havingprovision for adjusting said rests for shoes of diiierent lengths andfor simultaneously adjusting the position of said limiting means tocorrespondwith the adjustment ot' the toe and heel rests.

l2. An apparatus of the class described, having in combination, a jacksupport, a jack mounted thereon to cant and also to move endwise, meansfor locking the jack against canting movement as it reaches the end ofits endwise movement, and means for adjusting the jack to hold shoes ofdifferent lengths, said jack having provision for adjustment of theposition of the locking means.

13. An apparatus of the class described, having in combination, a jacksupport, a jack mounted thereon to cant and also to move endwise, meansfor locking the jack against canting movement as it reaches the end ofits endwise movement, and means for adjusting the position of thelocking means proportionally to t-he size of the shoe.

11i. An apparatus of the class described, having in combination, a jacksupport, a jack mounted thereon to cant and also to move endwise, andmeans for controlling the canting movement constructed and varranged topermit of a maximum of canting at the middle portion of the endwisemovement and to guide the jack into yan upright position and lock itagainst canting at the ends of the endwise movement.

l 15. An apparatus of the class described, having in combination, a jacksupport, a jack mounted thereon to cant and also to move endwise, andmeans adapted to be adjusted to lock the jack against canting movementat the ends of its endwise movement or to restrict said cantingmovement.

16. An apparatus of the class described, having in combination, a jacksupport, a jack mounted thereon to cant and also to Vmove endwise, andmeans cooperating with each end of the jack and adapted to beindependently adjusted to lock or to permit different degrees ofcant-ing movement at the two ends of the endwise movement of the jack.

17. In a device of the class described, a j ack support, a ack mountedfor movement thereon in a lengthwise direction and for movementtransversely to said irst named movement, and means whereby the extentof said transverse movement is varied according to the position of saidjack in the direction of said irst named movement.

18. In a` device of the class described, a shoe support, a jack mountedthereon for movement in a predetermined path and also mounted formovement transversely of said path, and means whereby the extent of saidtransverse movement is limited according to the position-of said jackalong said path.

19. A device of the class described, comprising in combination, a jacksupport, a jack mounted for movement thereon longitudinally of the shoeand for rotative movement about an axis parallel to said longitudinalmovement, and means for gradually diminishing said rotative movement asthe jack is moved longitudinally in either direction.

20. In a device of the class described, a jack support, a jack mountedthereon for movement in a rectilinear path and for rotative movement atright angles to said path, and means for varying the limits of saidrotat-ive movement according to the position of said jack along saidrectilinear path.

21. ln a device oi' the class described, having a jack and a supporttherefor, the combination of means constructed and arranged to permitthe jack to slide endwise and to rock transversely, means fordiminishing said rocking movement as the jack slides in eitherdirection, and means for locking the jack against transverse movementwhen the limits of sliding movement are reached in either direction.

22. A device of the class described, having a support and a jack mountedthereon, means constructed and arranged to permit to and fro movementsof translation of the jack and means for permitting movements of saidjack to incline the shoe sole to the horizontal, and means for lockingand unlocking t-he jack for such latter movements in time relation toits t0 and fro movements.

In testimony whereof I have signed my name to this specification in thepresence ot two subscribing witnesses.

CHARLES STONEHALL VELLS. Witnesses GRACE HOLMES, ARTHUR ERNEST JERRAM.

Copies of this patent may be obtained for :five cents each, byaddressing the Commissioner of Tatents, Washington, D. C.

